System of central signature verifications and electronic receipt transmissions
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Conventionally, a credit card is used for purchase transactions at a cash register or at a point-of-purchase terminal. A test signature is signed directly on a paper receipt or entered on a touch-pad input device and transmitted to a terminal printer to print on a paper receipt. A cashier is required handling the credit card for inspecting the test signature signed on the receipt in comparison with the template signature signed on the credit card. In the electronic receipt system of present invention, the signature verification is performed without manually handling the credit card by a cashier as described below.
FIG. 1 shows touch pad 1 which is preferably capacitive-type. A capacitive-type touch pad comprises an insulating layer 13 having an orthogonal matrix of first parallel conductive traces 11 aligned in the X-direction disposed on a first surface, and second parallel conductive traces 15 aligned in the Y-direction disposed on an opposed second surface. The conductive traces 1...
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